Stethoscopes

How Airtight is YOUR Stethoscope? Take this test and see. Turn the chestpiece so that you enable the bell (hole is under bell opening). Connect the stethoscope to your ears. Put one finger over the chestpiece bell hole to seal it. Lightly press on the diaphragm. Do you feel pressure in y..

It is said that French physician René Théophile Hyacinthe Laennec (1781-1826) invented the first stethoscope when presented with an obese lady with an illness. The doctor's modesty prevented him from undressing his patient and her size made it difficult to hear inside her chest. His amateur ..